Building-block



NTTED STATES PATENT OFFICE.

JULIA E. MEYENBERG, OF CHICAGO, ILLINOIS.

BUILDING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 512,043, dated January2, 1894.

Application iiledAugnst 10, 1892. Serial No. 442,696. (No model.)

To all whom t may concern:

Be it known that I, JULIA E. MEYENBERG, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Building-Block, of which the following is aspecification.

The invention relates to improvements in building blocks.

The object of the present invention is to provide a simple andinexpensive building block which may be rapidly laid, and which willwhen laid interlock, and thereby greatly increase the binding action ofthe blocks.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings and pointed out in the claim hereto appended.

In the drawings-Figure l is a perspective View of a building blockconstructed in accordance with this invention. Fig. 2 is a longitudinalsectional view of the same. Fig. 3 is a similar view illustrating themanner in which the blocks interlock. Fig. 4 is a transverse sectionalview of one of the building blocks.

Like numerals of reference indicate corresponding parts in all thefigures of the drawings.

l designates a hollow building block made up of a series of cells andprovided with a series of longitudinal openings 2 and having one end 3closed and having its other end open'. The closed end 3 is providedopposite the `longitudinal openings with a series of projections 4 whichconform to the configuration of the opening of the block, and areadapted to tit into the open end of another building block of similarconstruction as illustrated in Fig. 3 of the accompanying drawings. Theprojections and openings of the blocks are within the edges or areas ofthe ends of the-block, and form interlocking joints similar to mortiseand tenon, and do not permit a sliding movement as would be the casewere ribs or tongues and grooves employed.

The building blocks are preferably oblong in horizontal section, but anyother regular form may be employed and any desired number of openingsand their companion projections may be employed, and I desire it to beunderstood that I do not limit myself to tlie precise details ofconstruction herein shown and described, as such changes may be madewithout departing from the spirit of the invention. The building blocksmay be rapidly laid, and as soon as one is laid it inter-locks with thepreceding one, whereby the entire blocks of a building have theirbinding effect greatly increased and serve to sustain one another. Theclosed end 3 forms a series of transverse webs which greatly increasethe strength and durability of the blocks, and also prevent to a greatextent the noises incident to many hollow building blocks. It will beseen that the mannerof interlockingthebuilding blocks greatly increasesthe strength of the structure, and that a perfect and firm joint isassured; that there will be no difficulty in maintaining the buildingblocks in proper position untilthe cementeinployed inbuilding hardensand that the building blocks enable a structure to be rapidly, firmlyand strongly built to a great height.

A hollow building block made up of a series of cells and having one endclosed, and pro` vided on its closed end with a series of inter- Intestimony that I claim the foregoing as4 my own I have hereto affixed mysignature in the presence of two witnesses.

JULIA E. MEYENBERG.

Witnesses:

HENRY HULsMANN, P. WHI'PPLE.

